Roller-bearing applicable to gravity-runways or other purposes.



P. r. DONALIJ: ROLLER BEARING APPLICABLE TO GRAVITY HUNWAYS OR OTHER PURPOSES.

APPLICATION IILEI) MAY 28. I9IB.

Patcntml Apr. I5, 1913.

I 'llllllllll-m TED STATES ATEN UFFICE.

PERCY GEIKIE DONALD, OF LONDON. ENGLAN D.

Specification of Letters Patent.

Patented Apr. 15, 1919.

Application filed May 28. 1918. Serial No. 237.158.

To all 211710222 it may concern:

Be. it known that I, PERCY Genus Dox- ALI). a subject of the King of Great Britain and Ireland. of 225 Upper Thames street. London. E. C. England. have invented new and useful Improvements Relating to Roller-Bearings Applicable to Gravity-Runways or other Purposes. of which the following a specification.

My present improvements relate to roller bearings applicable to gravity runways or other purposes. my object being to provide a form of such bearing in which there are only two members besides the rollers. such members being simple stampings, preferably of mild steel. 7

Reference will hereinafter be made to the accompanying drawings. which illustrate a. convenient form of my invention. showing a gravity runway by way of example.

Figure l is partly an end view and partly a longitudinal section of such a runway containing my said improved roller bearlngs.

Fig. 2- is a view of the outside race, and Fig. 3 of the inside race.

In carrying out my said invention. the inner and outer races of the roller hearing are pressed out of sheet steel as follows. The inner race upon which the rollers I3 run is a short. tube A with outwardlv directed flanges A A upon the ends. The barrel portion A of the tube just sutlicicntly longer than the rollers B as to give them an easy fit betwen the flanges A and AP.

The ends of the rollers I3 may be rounded. The tube A is of such diameter as to be slid u 'ionthc axle C of the hearing. but need not be a tight fit. Alternatively it could be screwed on to the axle or fixed by a pin or otherwise, if desired. I

The outer race has a cylindrical part I) equal in length to the barrel A of the inner race and having a larger diameter corre sponding to the thickness of the rollers B. The. other side of this cylindrical part I) forms the inner wall of an annular U channo]. the outer wall E forming the means by which it is held to the runway roller I. When hollow or recessed-end rollers I" are employed for gravity runways, the outer race forms a kind of plug, which could be s0lid,'if desired. but is preferably flanged as at E to fit into the end. Obviously, it might be formed into a cap fitting over the end of the roller F.

One mode of assembling this improved roller .bearing may be simply as follows. The inner race A being introduced on to the axle the rollers I3 are placed around it (between its flanges) and the outer race D is slid upon it. the cylindrical part of the same enveloping the rollers B, which are thereby prevented from escaping. The whole is then fixed into the hollow roller F of the runway or other equivalent housing.

A convenient way, of fixing the bearing firmly in position is to provide one or two recesses E in the outer circumference of the outer race E, and then in the corresponding place in the surroumling runway roller F or the like (recognized by a marking) to punch the metal of the latter into such recesses E, which keys the two permanently together. T he exterior flange A on the inner race is sufliciently large to cover the ends of the rollers B. acting a dust cap. and both flanges A A" assist in retaining lubricant. 'ithdrawal of the inner race A is prevented by its butting against the web G of the rail through which the axle passes, or a nut or any other suitable stop may be used for the purpose.

The hearing may be assembled in the reverse order, when necessary.

The axle Cis prevented from being withdrawn from the retaining web G by a Hanged ferrule II in the barrel part of which a diametric slot I-I' (forming two slots) has been cut. and a hole is provided in the axle (I. and a cotter J passed into such ahole through the slot II. I do not confine n'iyself, however, to this or any other form of ferrule.

To sum up, the present bearing comprises essentially a tube forming the inner race adapted to fit on to the axle, and is flanged outwardly at each end so as to retain the rollers endwise. there being another tubular or cylindrical member forming the outer race, and the inner race may be prevented from displacement inwardly by its outer flange butting against the outer race, said races furthermore being designed preferably no as to be stamped or pressed out of sheet metal.

I claim l. A roller bearing comprising a tube forming the inner rave ndapl'ed to fit on to an axle and flanged onhvnrdly at eneli end to retain the rollers endwise and :1 tnlnllnr 0r Cylindricalmember forming the outer race, the latter being suitably connected to a load support.

2. In a roller bearing, n tubular member eonstihiting an outer r:1ce,..an inner race flanged outwardly at each end to retain antifrietinn members. an outward flare of the inner rave etxending across an end of the, outer race to prevent longitudinal movement of the inner rnce.

PERCY GEIKIE DONALD.

Copies; of this patent may be obtained for five cents each, by addressing the Commissioner of latenta, Washington, D. 0. 

